Mode scattering by a nonlinear step-discontinuity in dielectric optical waveguides

Author

Al-Bader, S.J. ; Jamid, Hussain A.

Author_Institution

King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

Volume

44

Issue

2

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

218

Lastpage

224

Abstract

The scatter of an incident TE₀ mode at a step-discontinuity separating linear and nonlinear waveguides is studied. Under certain conditions the self-focusing nonlinearity is shown to strongly modify the scattered field in comparison with the linear counterpart. The stronger effects are shown to occur when the nonlinear waveguide is operated in the cut-off condition at low power while supporting a nonlinear guided mode at high power. The method of lines is used in modeling the structure

Keywords

electromagnetic wave scattering; light scattering; nonlinear optics; optical self-focusing; optical waveguide theory; waveguide discontinuities; cutoff condition; dielectric optical waveguides; incident TE₀ mode; linear waveguides; method of lines; mode scattering; nonlinear step-discontinuity; nonlinear waveguides; scattered field; self-focusing nonlinearity; Dielectrics; Electromagnetic scattering; Electromagnetic waveguides; Nonlinear optics; Optical scattering; Optical waveguide theory; Optical waveguides; Semiconductor waveguides; Waveguide discontinuities; Waveguide transitions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.481570

Filename

481570